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  2. List of North American Numbering Plan area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_North_American...

    2023: returned to the pool of area codes available for future area code relief; 457: Louisiana (Shreveport–Bossier City, Monroe, Alexandria, Fisher, Tallulah, and most of northern Louisiana) September 25, 2025 [3] to be overlaid on 318; previously a fictitious area code assigned to identify Naked DSL/Dry Loop and dedicated data lines in ...

  3. List of Tennessee area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_Tennessee_area_codes

    Map of all Tennessee area codes. 423 - Chattanooga, Johnson City, Kingsport, Bristol: Initially split from 615 in 1995. 615 and 629 (overlay) - Greater Nashville, including Murfreesboro, Mount Juliet: 615 initially split from 901 in a 1954 flash-cut. The 629 overlay for the entire area code was made effective in 2015

  4. Category : Area codes in the United States by state or territory

    en.wikipedia.org/wiki/Category:Area_codes_in_the...

    Area codes in California (25 P) ... Area codes in New York (state) (22 P) Area codes in North Carolina (7 P) ... Area codes in Tennessee (7 P)

  5. List of California area codes - Wikipedia

    en.wikipedia.org/wiki/List_of_California_area_codes

    In 1947, the American Telephone and Telegraph Company (AT&T) devised the first nationwide telephone numbering plan and assigned the original North American area codes. The state of California was divided into three numbering plan areas (NPAs) with distinct area codes: 213, 415, and 916, for the southern, central, and northern parts of the state ...

  6. North American Numbering Plan - Wikipedia

    en.wikipedia.org/wiki/North_American_Numbering_Plan

    Mexican participation was planned, [11] but implementation stopped after three area codes (706, 903, and 905) had been assigned, and Mexico opted for an international numbering format, using country code 52. [12] The area codes in use were subsequently withdrawn in 1991. [13]

  7. List of area code overlays - Wikipedia

    en.wikipedia.org/wiki/List_of_area_code_overlays

    In addition to being the sole area code in the Space Coast region around the Kennedy Space Center, this is the only partial overlay area code in North America 323: 213: Central Los Angeles, incl. Downtown L.A. and Hollywood: 326: 937: Southwest Ohio: 331: 630: Western suburbs of Chicago: 332, 646 , 917: 212

  8. Category:Area codes in Tennessee - Wikipedia

    en.wikipedia.org/wiki/Category:Area_codes_in...

    List of Tennessee area codes; 0–9. Area code 423; Area codes 615 and 629; Area code 731; Area code 865; Area code 901; Area code 931

  9. Telephone numbering plan - Wikipedia

    en.wikipedia.org/wiki/Telephone_numbering_plan

    When dialing a telephone number, the area code may have to be preceded by a trunk prefix or national access code for domestic calls, and for international calls by the international access code and country code. Area codes are often quoted by including the national access code. For example, a number in London may be listed as 020 7946 0321.